This study developed an analytical method to quantitatively analyze the dual-mode seeker guidance performance. The method derives the seekers' measurement models and implements the Kalman filter. The study takes the RF/IR dual-mode seeker, which is proposed for advanced long/medium range air-to-air missiles, as the example. The two-dimensional guidance loop is used to illustrate the methodology and dimensionless equations are derived for generality. After discussing several missile-target scenarios, the results show that the developed scheme provides sufficiently accurate target information for missile guidance, not only for dual-mode seekers, but also when one of the seekers is jammed. The methodology developed in the study can also be applied to increase the accuracy of target tracking.
Journal of Emerging Trends in Engineering and Applied Sciences 2(4), pp.636-642